Term
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Definition
| a segment that connects the a vertex of the triange to the midpoint of the side opposite that vertex |
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Term
| an altitude of a triangle |
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Definition
| a segment that extends from a vertex and forms perpendicular lines with the side opposite that vertex. |
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Term
| the circumcenter of a triangle |
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Definition
| The circumcenter of a triangle is point of concurrency of the three perpendicular bisectors of the triangle. |
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Term
| the centriod of a triangle |
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Definition
The centriod of a triangle is the point of concurrency
of the three medians of the triangle. |
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Term
| a perpendicular bisector of a segment |
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Definition
| a line that is perpendicular the segment at its midpoint |
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Term
| an exterior angle of a trinagle |
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Definition
| an angle that forms a linear pair with an interior angle |
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Term
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Definition
| adjacent angles whose non common rays form a line |
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Term
| Each point on the perpendicular bisector of a segmnet |
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Definition
| is equidistant from the endpoints of that segment |
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Term
| If a point on the interior of an angle is equidistant from the sides of that angle |
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Definition
| it lies on the bisector of that angle |
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Term
| in an isosceles triangle, the altitude from the vertex angle |
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Definition
| is also the perpendicular bisector |
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Term
| if two sides of a triangle are congruent |
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Definition
| then the angles opposite those sides are congruent |
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Term
| the acute angles of a right triangle are |
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Definition
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Term
| for any three non-collinear points |
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Definition
| there is a unique plane containing them |
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